improve repo structure

examples/angular/src/app/app.component.ts

@@ -0,0 +1,38 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  template: `
+    <!--The content below is only a placeholder and can be replaced.-->
+    <div style="text-align:center" class="content">
+      <h1>Welcome to {{ title }}!</h1>
+      <span style="display: block">{{ title }} app is running!</span>
+      <img
+        width="300"
+        alt="Angular Logo"
+        src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNTAgMjUwIj4KICAgIDxwYXRoIGZpbGw9IiNERDAwMzEiIGQ9Ik0xMjUgMzBMMzEuOSA2My4ybDE0LjIgMTIzLjFMMTI1IDIzMGw3OC45LTQzLjcgMTQuMi0xMjMuMXoiIC8+CiAgICA8cGF0aCBmaWxsPSIjQzMwMDJGIiBkPSJNMTI1IDMwdjIyLjItLjFWMjMwbDc4LjktNDMuNyAxNC4yLTEyMy4xTDEyNSAzMHoiIC8+CiAgICA8cGF0aCAgZmlsbD0iI0ZGRkZGRiIgZD0iTTEyNSA1Mi4xTDY2LjggMTgyLjZoMjEuN2wxMS43LTI5LjJoNDkuNGwxMS43IDI5LjJIMTgzTDEyNSA1Mi4xem0xNyA4My4zaC0zNGwxNy00MC45IDE3IDQwLjl6IiAvPgogIDwvc3ZnPg=="
+      />
+    </div>
+    <h2>Here are some links to help you start:</h2>
+    <overlay-scrollbars></overlay-scrollbars>
+    <ul>
+      <li>
+        <h2>
+          <a target="_blank" rel="noopener" href="https://angular.io/tutorial">Tour of Heroes</a>
+        </h2>
+      </li>
+      <li>
+        <h2>
+          <a target="_blank" rel="noopener" href="https://angular.io/cli">CLI Documentation</a>
+        </h2>
+      </li>
+      <li>
+        <h2><a target="_blank" rel="noopener" href="https://blog.angular.io/">Angular blog</a></h2>
+      </li>
+    </ul>
+  `,
+  styles: [],
+})
+export class AppComponent {
+  title = 'example';
+}